Nicolas talard



N. TALARD.

PUMxf.

' Patented Jan. 3,1882..

UNITED I STATES PATENT i OFFICE.. t

NICOLAS CrALAnD, on, PARIS, FRANCE.

- l' PUMP.

sPEcIFIcA'rIoN forming part Vof Lei-,ters Patent No. 251,967, dated January 3, 1882.

Application filed May T, 1881. (No model.) Patented in France December 30, 1876, and in England December 7, 1880.

To all whom 'it mag/concern:

Be it known that I, NICOLAS TALARD, a citizen of France, residing at Paris, in the Republic of France, have invented a new and useful improved construction of pumps for exhausting, raising, or forcing air and other iiuids, (for which I have `obtained a patent in Great Britain, No. 5,103, bearing date December 7,

1880and in France, bearing date December 30, 1876,) of which the following is a specification. I l

My invention relates to an improved construction of pumps, more particularly applicable to the exhausting ot' air and gases from receivers for sewage matters, such as described in my application for Letters Patent liled on the 23d February, 1881, but which is also applicable for exhausting air and other gases or x stufting-box in the one cover, G. The ends of the cylinder have fitted to them plates K K,

in which` are openings having suction-valves I I and discharge-valves I I. These valves are by preference metal flap-valves faced with caoutchouc, leather, or the like, and they are kept down on their seats by light springs p, coiled round the hinge-pin of the valve, and bearing with a loop, 10, upon 'the valve, while the ends p' bear against the plate K. Over the valve-plates are fitted the hollow covers G G, having cross-'ribs G fitting air-tight against the plates K, so as to form two sepa-l rate vchambers ineach cover, the one communicating with the suction-valves I and the other with the delivery-valves I'. These valves are loosely pivoted at their upper portions on the hinge-pins before referrcdto, which pins are secured in horizontal positions on the inner and outer sides ofthe plates K, as shown,

central lateral branches, H H, are formed inte,-`

gral with the cylinder B, whereby the construction of the pump is simplified and theA cost of production reduced.

The hollow covers G Gr form perfectly closed ends to the pump, and the two chambers formed by the cross-ribs G communicate respectively with two longitudinal passages, h Informed through the sides of the cylinder B, which passages have at their middle branches H H, that are connected by means of sockets 'si fi, respectively, with the suction and delivery pipes B B. rlhe covers and valve-plates are all secured air-tight to the ends of the cylinder, by preference, by means of one set of screw-bolts, F', passing through holes in anges F on the ends of the cylinder and through correspond-` ing holes in the covers and valve-plates.

I am-aware that a pump has beencomposed of .a cylinder having suction and discharge valves in its ends, with two separate pipes, placed one on each side of the cylinder, and connected at their ends to hollow boxes divided into two chambers by a partition, said hollow boxes being provided respectively with inlet and outlet orifices formed in line with the before-men tioned pipes; but such construction ot'. parts is not my invention.

I claim as my invention- 1. In a pump for the purpose described, the` cylinder B, formed integral with the longitudinal passages h h, which are provided intermediate of their ends with laterally-projecting inlet and outlet branches H H, in combination` with the hollow covers forming closed ends to the pump, and valve-plates applied `to the ends of the cylinder, and provided with suction and discharge valves, substantially as, described.

2. In a pump for the purposes described, the cylinder B, formed integral with the longitudi- Vnal passages h l1, which are provided interme- IOO passages h h, provided'with laterally-projecting inlet and outlet branches H H, in 'combi- In testimony Whereoflhavesgned myname to this specification, in the presence of two sub- 1o soribing witnesses, this 15th day of April, A.

- N IGOLAS TALARD. v Witnesses: v

J. J ULEs DIGEoN, DENIS J AoQUEs VIoIoT, 

